Hi Kailang, Thanks for providing the patch, and we tested the patch, it fixed the problem.
Regards, Hui. On 04/23/2015 03:18 PM, Kailang wrote: > Fix Dell ALC256 headphone Mic recording issue. > Default is pcbeep path for 0x1a input. > >> -----Original Message----- >> From: Takashi Iwai [mailto:ti...@suse.de] >> Sent: Tuesday, April 21, 2015 6:03 PM >> To: David Henningsson >> Cc: ti...@suse.de; Kailang; hui.w...@canonical.com; >> 1446...@bugs.launchpad.net; sta...@vger.kernel.org >> Subject: Re: [PATCH] ALSA: hda - fix "num_steps = 0" error on ALC256 >> >> At Tue, 21 Apr 2015 10:48:46 +0200, >> David Henningsson wrote: >>> The ALC256 does not have a mixer nid at 0x0b, and there's >> no loopback >>> path (the output pins are directly connected to the DACs). >>> >>> This commit fixes an "num_steps = 0 for NID=0xb (ctl = Beep >> Playback Volume)" >>> error (and as a result, problems with amixer/alsamixer). >>> >>> If there's pcbeep functionality, it certainly isn't controlled by >>> setting an amp on 0x0b, so disable beep functionality (at >> least for now). >>> Cc: sta...@vger.kernel.org >>> BugLink: >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1446517 >>> Signed-off-by: David Henningsson <david.hennings...@canonical.com> >> Applied, thanks. >> >> >> Takashi >> >>> --- >>> sound/pci/hda/patch_realtek.c | 5 +++-- >>> 1 file changed, 3 insertions(+), 2 deletions(-) >>> >>> diff --git a/sound/pci/hda/patch_realtek.c >>> b/sound/pci/hda/patch_realtek.c index 231d0e4..03975d03 100644 >>> --- a/sound/pci/hda/patch_realtek.c >>> +++ b/sound/pci/hda/patch_realtek.c >>> @@ -5664,6 +5664,7 @@ static int patch_alc269(struct >> hda_codec *codec) >>> break; >>> case 0x10ec0256: >>> spec->codec_variant = ALC269_TYPE_ALC256; >>> + spec->gen.mixer_nid = 0; /* ALC256 does not >> have any loopback mixer >>> +path */ >>> break; >>> } >>> >>> @@ -5677,8 +5678,8 @@ static int patch_alc269(struct >> hda_codec *codec) >>> if (err < 0) >>> goto error; >>> >>> - if (!spec->gen.no_analog && spec->gen.beep_nid) >>> - set_beep_amp(spec, 0x0b, 0x04, HDA_INPUT); >>> + if (!spec->gen.no_analog && spec->gen.beep_nid && >> spec->gen.mixer_nid) >>> + set_beep_amp(spec, spec->gen.mixer_nid, 0x04, >> HDA_INPUT); >>> >>> codec->patch_ops = alc_patch_ops; >>> codec->patch_ops.stream_pm = snd_hda_gen_stream_pm; >>> -- >>> 1.9.1 >>> >> ------Please consider the environment before printing this e-mail. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1446517 Title: "num_steps = 0" error on ALC256 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1446517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
